Mission Launches Fuel Rocket Lab's Rally: Should You Buy the Stock Now?

Rocket Lab (RKLB) has seen its shares surge 66.2% in the last three months, outperforming its industry, sector, and the S&P 500, driven by a series of successful satellite deployment missions and positive long-term growth prospects for the space economy; however, investors should note the company's high operating expenses, elevated debt levels, and premium valuation compared to peers like Lockheed Martin (LMT) and Intuitive Machines (LUNR), suggesting a potentially better entry point may arise despite upward revisions in annual earnings estimates.

Analysis

Rocket Lab USA, Inc. (RKLB) has demonstrated significant operational momentum with recent successful Electron rocket launches, including its 65th mission deploying satellites for BlackSky in June 2025, a third mission for iQPS in May, and deployment for OroraTech in March, all achieving 100% mission success. This operational success is reflected in its share price, which surged 66.2% over the past three months, substantially outperforming the Zacks aerospace-defense industry's 18% gain, the broader Zacks Aerospace sector's 21.8% rise, and the S&P 500's 7.5% increase. This performance occurs within a growing space economy, projected by the World Economic Forum to expand from $630 billion in 2023 to $1.8 trillion by 2035. Rocket Lab aims to capitalize on this, with its Electron vehicle being the second most frequently launched U.S. orbital rocket and plans for over 20 launches in 2025. Consensus estimates project robust year-over-year sales growth for RKLB of 32.8% in 2025 and 47.7% in 2026, with similar improvements in annual earnings estimates which have seen upward revisions in the past 60 days, although second-quarter 2025 earnings estimates suggest a year-over-year decline. However, significant challenges temper this outlook: high operating expenses from investments in new technologies like the Neutron vehicle contribute to ongoing losses. The company also carries elevated debt levels, with its long-term debt-to-capital ratio exceeding many industry peers. Execution risk is a further concern, evidenced by the delay of the first Neutron rocket launch from an initial 2024 target to mid-2025 at the earliest. Valuation is also a key consideration, as RKLB trades at a forward 12-month price-to-sales ratio of 19.18X, a significant premium to its peer group average of 4.50X and competitors like Intuitive Machines (LUNR at 6.51X) and Lockheed Martin (LMT at 1.49X).

Key Decisions for Investors

• Investors should acknowledge Rocket Lab's strong recent operational performance and significant stock appreciation, alongside the positive long-term growth trajectory of the space economy.
• Careful consideration must be given to the company's premium valuation (forward P/S of 19.18X), high operating expenses driven by R&D, substantial debt burden, and existing execution risks exemplified by the Neutron launch delay.
• Prospective investors might consider awaiting a more attractive entry point due to the current valuation and leverage concerns, while existing shareholders, noting the stock's Zacks Rank #3 (Hold), impressive recent performance, and upwardly revised annual estimates, may opt to maintain their positions.